| Acronym | Meaning |
| CCFL | Countercurrent Flow Limitation |
| ADTT | Accelerator Driven Transmutation Technology |
| VO | Virtual Orbital |
| HASI | Huygens Atmospheric Structure Instrument |
| WKB | Wentzel-Kramers-Brillouin (phase-shift Formula For Potential Scattering) |
| NHF(FC) | Nonrelativistic Numerical Hartree-Fock (frozen-core ) |
| SCTD | Superconducting Current Transfer Device |
| USTR | US Transuranium Registry |
| LNO | Localized Natural Orbital |
| CERPIES | Collision Energy Resolved Penning Ionization Electron Spectra |